It would help to know what brand and model of radio? Is there not an owners manual for the radio in the coach? If not, have you googled the radio information to see if it may be online and / or if the owner's manual is available to download and print?
This would be a great time to look at the build sheet and make sure that you have the manuals for everything that has been installed in your coach.
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Kelly and Jerry Powell with Halo (Lethal White Aussie), Nash the Rat Terrorist, and now Reid, the "Brindle we have no idea puppy"
2020 Grand Design Solitude 390RK-R
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